Can-end-feeding mechanism for closing-machines.



l. F. WARME 6L G. FLUCK. SAN EN() EEDING MECHANISM FOR CLOSING MACHWES.

APPLICATION FILED AUG. 10. |916. 55M Pam-mmm. 19, 1918.

4 SHEETS-SHEET 1- l. F. WARME GL. G. FLUCK, om: Emu moms mEcHANlsM Foa CLOSING MACHINES.

APPLICATION FILED AUG-10,1916.

Patented Nm'. 19, 1918.

4 SHEETS--SIIEET 2.

l. F. WAHME & G. FLUCK. CANVENDTEEDING MECHANISM FOR CLOSING MACHINES.

APPLICATION ULED AUG. 10, 19'6.

Patented Nov. 19, 1918.

l. F. WARME & 6. FLUCK. CAN END 555mm; MECHANISM foR CLOSING MAcHuNEs'.

APPLlcAnoN man Aue.1o.191s. l 285,502 Patented Nov. l9, 1918.

4 SHEETS-SHEET 4.

HneooM" v MW MTED STATES PATENT FFQE.

IVAR F. 'WARME AND GEORGE FLUCK, 0F SYRACUSE, NEW YORK, ASSIGNOBS T0 CONTINENTAL CAN COMPANY, INCORPORATED, 0F SYRACUSE, NEV YORK, A

CORPORATION 0F NEW YORK.

Specification of Letters Patent.

Patented Nov. 19, 1918.

Application filed August 10, 1916. Serial No. 114,255.

To all 'whom it may concern:

Be it known that we, IVAR F. WARME and GEORGE FLUCK, citizens of the United States, residing at Syracuse, in the county of Onondaga, State of New York, have invented certain new and useful Improvements in Can-End-Feeding Mechanism for Closing-Machines, of which the following is a description, reference being had t0 the accompanying drawing' and to the figures of reference marked thereon.

The invention relates to new and useful improvements in can end feeding means for closing machines, and more particularly t0 a closing machine having a rotating seaming head carrying seaming` rolls such as shown for example in the patent granted to Ivar F. Warme, March 16th, 1915, No. 1,132,291.

An object of the invention is to provide means for raising the stack of can ends, so as to release the lowermost can end to facilitate the removal of the same from the stack by the can end feeding pusher.

A further object of the invention is to provide a device of the above character wherein the stackraising mechanism is adjustable for different sized can ends.

These and other objects will in part be obvious. and will in part be hereinafter more fully disclosed.

In the drawings, which show by way of illustration one embodiment of the invention,-

Figure l is a plan view showing a part of a closing` machine with a stack-holder and can-end-feeding mechanism attached thereto;

Fig. 2 is a sectional View through the stack-holder and the supporting bracket therefor, showing a portion of the pusher and a portion of the slideway for the can ends;

Fig. 3 is a sectional view through the stack-holder, showing the stack-raising de-` vice and the cam for operating the same;

Fig. 4 is a side view of the stack-holder and the stack-raising device;

Fig. 5 is a detail showing' the stacked can ends in the stack-holder;

Fig. 6 is a view showing the stack-raiserv Figs. 7 and 8 are sectional details on lines 7--7 and 8-8 respectively, of Fig. 3.

The invention is applied to a can-closing machine having a rotating sealning head beneath which the iilled cans are fed. Also beneath this head is a supporting ring havineF a seat for the can end, and the filled can is raised so as to vengage this can end. The can end is seated in the filled can, after which it is raised and presented to a rotating chuck and seamingi,r rollsk carried by the rotating chuck coperate in forming' a double seam for joining the can end to the can body. A machine of this type is shown in the patent above referred to.

Adjacent the seaming head a stackholder consisting of a-supporting base 1 carrying a series of rods 2, 2. The ends are stacked between these rods. The supporting base is carried by a bracket 3, which is bolted to the seaming head and extends laterally at one side thereof. This bracket carries the ring which seats the canend beneath the seaming head. The can end seat on the ring is indicated at it in Fig. l of the drawings.

The bracket 3 isprovided with a recess the longitudinal center line of which is in the form of a segment of a circle. This recess eXtends from the seatingring 4 to a point underneath the stack-holder. The bracket 3 is also provided with a recess in which reciprocates a pusher 5. This pusher 5 has a hardened Piate 6 secured at the forward end'thereof, and this hardened plate engages a can end underneath the stackholder and forces it along, the recess under the seaming head. The pusher 5 is reciprocated by an arm 6a, which is oscillated from the main shaft of the machine. Means is provided for disconnecting the pusher from the reciprocating arm, so that when there is no filled can fed underneath the seaming head, then no can end will be fed from the stack onto the can end seat. This no-can-no-end feed is well known in the art, and has not been illustrated.

Associated with this can end feeding mechanism is a stack-raising device. This stack-raising device `is in the form ofv a slide 7, which moves'back and forth in a bracket 8, which in turn is bolted to the bracket 8. The slide 7 has a hardened plate separating they lowermost can end from the remainder of the stack, as clearly illustrated in Figs. 5 and 6.

In Fig. 5, the can ends are indicated at E and they are stacked one upon the other.

Inl Fig. 6 the slideI isl moved forward 'and-'- the lip 11 has passed between the two lowermost can ends and has lifted the stack from the lowermost can end, so that the pusher may engage this lowermost can end and move it forward underneath the seamingi head.l

The slide 7 is reciprocated by a rocker arm 12. This arm 12 is pivoted at 13 to the bracket 8. The rocker arm 12 has a projecting lug 141 and a spring 15 bears against this projecting lug. The spring 15 is housed in the projecting arm 16.

The slide 7 is. connected to the rocker arm `12 in the-following manner: Said slide 7 is connected to a plate 17 Said plate 17 has an upstanding forked ledge 18, which receives a headed bolt 19. The said headed bolt is cut away to form a cylindrical portion 20, which extends between the arms of the fork. This headed bolt 19 is threaded at 21 and the threaded section engages the slide 7.

The plate 17 is secured to the rocker arm 12 by a bolt 22, which extends through the arm of the rocker and: up through the plate 17, Aand also up throughv the slide 7. The slide V7, however, hasa slot 23 extending lengthwise thereof through which the bolt 22 extends, which permits the slide to be adjustedby the turning of the headed bolt 19. It will readily be seen that by turning the headed bolt 19, the position of the slide 7 may be shifted relative to the operating rocker arm.v

The rocker arm is provided with a roller 24 which engages a cam 25 carried by a shaft 26, mounted in suitable bearings and operated from the main shaft of the machine. This cam 25 is so timed as to move the stack-raising device forward to raise the stack to release the lowermost can end just before the pusher engages the lowermost endfor carrying it forward underneath the receiving head.y

The forward movement of the stack-lifting deviceis brought about through the action of the.- spring which prevents the jamming of the can ends in any way whatever as the spring is not strong enough to injure them, although it will. raise the stack inthe manner. above" described. The stack-raising device is returned to idle position by the cam-engaging roller 24.

From the above description, it will be apparent that we have provided a stack-raising device operating in proper timed relation to the reciprocations of the pusher which carries the can ends forward underneath the seaminghead. The staclcraising device lifts the stack from the can end which isto` be'y moved forward. This prevents any scraping of the can ends which are drawn from the stack and greatly increases the efficiency of the can-end-feeding mechanism.

It is obvious that minor changes in the details of construction may be made, without departing from the spirit of the invention as set forth in the appended claims.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent, is

1. A can-end-feeding mechanism for can closing machines including in combination, a stack-holder, a pusher for engaging the lowermost can end in the stack-holder for moving the same forward underneath the seaming head of the closing machine, and a stack-raising mechanism including an oscillating` rocker arm, a slide operated by said rocker arm, said slide having a separating lip adapted to separate the lowermost can end from the stack, a spring for moving the rocker arm for carrying the slide forward to separate the lowermost can end from the stack, and a cam for moving the rocker arm to retract the slide. j

2. A can-end-feeding mechanismfor can closino machines including in combination, a stac 'holder, a pusher for engaging the lowermost can end in the stack-holder for moving the same forward underneath the seaming head of the closing machine, a stack-raising mechanism including an oscillating rocker arm, a slide operated by said rocker arm, said slide having a separating lip adapted `to separate the lowermost can end from the stack, a spring for moving .the rocker arm' for carrying the slide forward to separate the lowermost can end from the stack, a cam for moving the rocker arm to retract the slide, and devices whereby the connection between the slide and the rocker arm may be adjusted for diEerent sized can ends.

In testimony whereof, we affix our signa tures, in the presence of'two witnesses.

IVAR F. WARME. GEORGE FLUCK.

Witnesses: A

ARTHUR E. CHASE, F. M. BoNT'A.

Copies ofthilspatent may be' obtained for ljive cents each, by addressn'g'the Commissioner of Patents;

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